Manufacturing process for combining a layer of pulp fibers with another substrate
September 26, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2666369 3485706 3821068 Hydroentangled disintegratable fabric High strength hydroentangled nonwoven fabric Highly absorbent nonwoven fabric Nonwoven material subjected to hydraulic jet treatment in spots Water entanglement process and product Hydraulically needled nonwoven pulp fiber web Wiping fabric and method of manufacture InventorAssigneeApplicationNo. 11235700 filed on 09/26/2005US Classes:28/104By fluid jet needling or perforatingExaminersPrimary: Vanatta, Amy BAttorney, Agent or FirmForeign Patent References
International ClassD04H 5/02AbstractA process for hydro-entangling a layer of fibers into a web includes the steps of conveying a web from a supply to lie against a traveling hydro-entangling fabric. A layer of fibers is deposited onto a traveling forming fabric, the forming fabric supporting the fiber layer from below. The forming fabric and the hydro-entangling fabric converge at a combining location where the forming fabric and hydro-entangling fabric orient and travel adjacent each other such that the fiber layer and web are sandwiched between the forming fabric and the hydro-entangling fabric with the fiber layer supported from below by the hydro-entangling fabric and web. The forming fabric is separated from the fiber layer after the web and overlying fiber layer are supported from below by the hydro-entangling fabric and the hydro-entangling fabric is conveyed through a hydro-entangling station to hydro-entangle the fibers into the web.Other References
Field of SearchBy fluid jet needling or perforatingThrough backing and support members By fluid contact Fiber entangling and interlocking Compressive manipulation By cylinder and opposed conforming bed Thread compacting Running or indefinite length work forming and/or treating processes (e.g., web) Forming single web between opposed forming surfaces Subsequent treatment of formed web Pressure With heating and/or cooling Heating, cooling, gas or vapor contact Running or indefinite length product forming and/or treating means Creping and/or crinkling Molding and heat exchange means Plural molds or plural spaced areas of application on a single mold Flexible endless band type mold (e.g., Fourdrinier) Suction through mold On common felt or carries (non-mold) By fluid pressure Non-uniform, irregular or configured web or sheet With weaving, knitting, braiding, twisting or needling Fluid or special treatment Web forming Fluid propelled to condenser Rotary condenser Stratified or multilayer | |
